The unusually large order reflects the original agreement that FX made for the sitcom, which marked Sheen's quick return to TV after he was fired from "Two and a Half Men."

As part of the deal, FX set a ratings target for eight of the first 10 episodes of "Anger Management." The show reached the threshold, earning an automatic 90-episode order.

FX says "Anger Management" is cable's highest-rated new comedy series this year, averaging 4.5 million viewers.

FX Networks executive vice president Chuck Saftler says he's confident the producers and cast will be able to produce another 90 episodes during the next two years after quickly turning out the first 10.